Thousand origami cranes (千羽鶴, Senbazuru) is a group of one thousand origami paper cranes held together by strings. An ancient Japanese legend promises that anyone who folds a thousand origami cranes will be granted a wish by a crane, such as long life or recovery from illness or injury.
Sadako and the Thousand Paper Cranes is a non-fiction children's book written by American author Eleanor Coerrand published in 1977.
This true story is of a girl, Sadako Sasaki, who lived in Hiroshima at the time of the atomic bombing by the United States. She developed leukemia from the radiation and spent her time in a nursing home creating origami (folded paper) cranes in hope of making a thousand of them. She was inspired to do so by the Japanese saying that one who created a thousand origami cranes would then be granted a wish. Her wish was simply to live. However, she managed to fold only 644 cranes before she became too weak to fold any more, and died shortly after. Her friends and family helped finish her dream by folding the rest of the cranes, which were buried with Sadako. They also built a statue of Sadakoholding a giant golden origami crane in Hiroshima Peace Park.